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← ScienceWhich risk increases when a long undersea cable's insulation degrades?
A)Signal reflections intensify at faults✓
B)Cable resonance modes shift downwards
C)Capacitance discharge causes overvoltage
D)Dielectric absorption introduces signal echoes
💡 Explanation
Increased signal reflections at faults occur, because impedance mismatching increases due to localized shorting, thereby hindering signal propagation, rather than resonance shifts other phenomena. The mismatched impedance causes signal reflections.
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